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OM600 ENGINE CONTROLS 1F3 -- 7 DAEWOO MY_2000 Test step 1 Connect vacuum pump (14) with Y adapter to PLA vacuum unit (5). Run engine at idle speed. Vacuum ≧ 500 mbar YES NO Faulty PLA vacuum unit (Coolant Temperature 30_C) Connect vacuum pump (14) direct to PLA vacuum unit (5) and pressurize with vacuum. YES NO Lines and connections leaking. Faulty PLA vacuum unit. (Remove the connection hose from vacuum pump) Vacuum is built up and idle speed increases approx. 150--200 rpm YES NO Lines and connections leaking. Faulty thermovalve. Stop the engine Seal the air admission line with plug. Connect the vacuum pump to line to ther- movalve and pressurize the line with vacuum. Vacuum is built up. |